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Tenth Grade (Grade 10) DNA, RNA, and Genetics Questions

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Grade 10 DNA, RNA, and Genetics
What type of RNA is a component of the site of protein synthesis?
  1. RNA
  2. mRNA
  3. rRNA
  4. tRNA
Grade 10 DNA, RNA, and Genetics
Down syndrome occurs when an individual has
  1. an extra chromosome 21.
  2. a missing chromosome.
  3. an extra set of homologs.
  4. haploid cells.
Grade 10 DNA, RNA, and Genetics
What is the sugar indicated by the number 2 in the diagram?
RNA
  1. ribose
  2. deoxyribose
  3. glucose
  4. cellulose
Grade 10 DNA, RNA, and Genetics
What are the three parts of a nucleic acid?
  1. protein, amino acid, and enzyme
  2. carbon, oxygen, and hydrogen
  3. amino acid, lipid, and carbohydrate
  4. sugar, phosphate, and nitrogenous base
Grade 10 DNA, RNA, and Genetics
Skin color in humans being controlled by four different genes is an example of                  .
  1. multiple alleles
  2. polygenic traits
  3. pleiotropy
  4. none of the above
Grade 10 DNA, RNA, and Genetics
Mendel's first set of experiments led to the law of
  1. genetics.
  2. segregation.
  3. assortment.
  4. heredity.
Grade 10 DNA, RNA, and Genetics
Who is known as "the father of genetics"?
  1. James D. Watson
  2. Charles Darwin
  3. William Bateson
  4. Gregor Mendel
Grade 10 DNA, RNA, and Genetics
The "rungs" of the DNA ladder are made of
  1. phosphates and hydrogen.
  2. glucose and sugars.
  3. sugars and phosphates.
  4. base pairs.
Grade 10 DNA, RNA, and Genetics
The three-nucleotide sequence on RNA is a
  1. codon.
  2. tRNA.
  3. triplet.
  4. gene.
Grade 10 DNA, RNA, and Genetics
A                   is a characteristic such as hair color, height, or eye color.
  1. gene
  2. trait
  3. chromosome
  4. none of the above
Grade 10 DNA, RNA, and Genetics
A pedigree can be used to
  1. determine whether a trait is inherited.
  2. show how a trait is passed through the generations.
  3. determine if an allele is dominant or recessive.
  4. all of the above
Grade 10 DNA, RNA, and Genetics
Transcription is the
  1. modification of a strand of RNA prior to the manufacture of a protein.
  2. manufacture of two new DNA double helices that are identical to an old DNA double helix.
  3. manufacture of a protein based on information carried by RNA.
  4. manufacture of a strand of RNA complementary to a strand of DNA.
  5. manufacture of a new strand of DNA complementary to an old strand of DNA.
Grade 10 DNA, RNA, and Genetics
In messenger RNA, each codon specifies a particular
  1. nucleotide.
  2. purine.
  3. amino acid.
  4. pyrimidine.
Grade 10 DNA, RNA, and Genetics
The process that produces two DNA molecules identical to an original DNA molecule is DNA
  1. synthesis.
  2. translation.
  3. replication.
  4. recombination.
Grade 10 DNA, RNA, and Genetics
During which stage of interphase is DNA replicated?
  1. G1 phase
  2. S phase
  3. G2 phase
  4. cytokinesis
Grade 10 DNA, RNA, and Genetics
Which statement about human reproduction is accurate?
  1. A baby's sex depends on the chromosome in the egg.
  2. Two X chromosomes result in a male.
  3. A baby's sex is determined by the sperm.
  4. Each egg and sperm cell contains a full set of 46 chromosomes.
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